Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name Fastest Shortest Total Acc. Ratio Difficulty Languages
Archery Accuracy 0.01 871 116 31 27% 7.0Hard en
Average Character 0.00 32 2956 1220 41% 1.8Easy en
Black and White 0.13 592 262 114 44% 5.9Hard en
Circle Bounce 0.00 200 165 89 54% 4.3Medium en
Diagonals 0.00 1884 153 55 36% 7.2Hard en
Dorm Room Divide 0.03 580 1040 133 13% 7.1Hard en
Double Password 0.00 39 2874 1755 61% 1.6Easy en
Fail Them All! 0.00 899 393 91 23% 8.3Hard en
Hopscotch 500 0.11 891 399 98 25% 7.0Hard en
Overdraft 0.00 38 1520 745 49% 2.0Easy en
Problem Set Construction 0.01 940 41 27 66% 3.8Medium en
Reversibly Cyclic Strings 0.00 32 381 172 45% 3.4Medium en
Rise and Fall 0.00 175 737 178 24% 4.4Medium en
Scaling Recipe 0.00 46 1291 613 47% 1.8Easy en
Shortest Missing Subsequences 0.09 886 254 87 34% 5.8Hard en
Square Bounce 0.00 596 90 36 40% 4.0Medium en
Tetris Generation 0.00 164 991 245 25% 5.5Hard en
Tournament Seeding 0.03 330 382 173 45% 3.9Medium en
Tree Hopping 0.02 893 652 171 26% 6.4Hard en
Who Goes There? 0.00 144 845 283 33% 4.0Medium en
XOR Island 0.00 291 185 71 38% 6.7Hard en